So me and my dad made a cage for my veiled its probably 18x18x4 feet and i have a small umbrella plant and a ficus both pots fill most off the bottom but the thing is only 2 feet of my cage is full what could i put on the top 2 feet for him to go higher i kinda want real plants but i dont know if i can hang plants from the top what are idea i could do to put on the top half of the cage